The user is not on BES 5 but only on bds - seems to activate but no info is synced (no contacts, no calendar and no emails)

I have checked the user has activeSync enabled in properties on Exchange, windows Firewall is disabled for now, will get comms to check network for 443 because it mentions that does come up with the below message when i try to update the account settings.

"The server for account [exchmailboxserver, port:443] cant be reached. The setting might be incorrect or the server could be temporarily offline. Check your settings and try again"

seems like some network issue blocking port 443 back to the server

Having completed the activation, I still have no joy with the sync of email,contact,calendar entries

Running Exchange 2007 SP3, the email profile is pointing to the mailbox server. The FW is showing that its allow 443 from the BDS to the Exchange but the transaction is Incomplete !

The ActiveSync is enabled for the user, so not sure what I am missing, any ideas ?